阻止页面滚动的方法

//阻止浏览器事件
function disabledMouseWheel() {
    document.addEventListener('DOMMouseScroll', scrollFunc, {
        passive: false
    });
    document.addEventListener('mousewheel', scrollFunc, {
        passive: false
    });
}

//取消阻止浏览器事件
function cancelDisMouseWheel() {
    document.removeEventListener('DOMMouseScroll', scrollFunc, {
        passive: false
    });
    document.removeEventListener('mousewheel', scrollFunc, {
        passive: false
    });
}

function scrollFunc(evt) {
    evt = evt || window.event;
    if (evt.preventDefault) {
        // Firefox  
        evt.preventDefault();
        evt.stopPropagation();
    } else {
        // IE  
        evt.cancelBubble = true;
        evt.returnValue = false;
    }
    return false;
}